Диатомит шүүлтүүрийн тусламж, диатомийн шороон нунтаг
Diatomite is a biogenic siliceous sedimentary rock, mainly composed of the remains of ancient diatoms. Its chemical composition is mainly SiO2, containing a small amount of Al2O3, Fe2O3, CaO, MgO, K2O, Na2O, P2O5 and organic matter. The mineral composition of diatomite is mainly opal and its vari...